Hi Jeff, sounds awful. Even 20s on a good day is a lot IMO. We're using Wicket, which is on the heavy side, and still the startup typically only takes 10 to 15s, and that's including rendering an initial page too (so it basically involves firing up all subsystems too, loading all classes, contacting the database several times, filling some caches, etc).
I'm guessing you're experiencing some "new release testing" by the Google Team, so that might account for a certain slowdown. We've seen our average latency increase from 250ms to 380ms over night, 2 days ago. Maybe your slowdown is related to a similar service change. But it sounds like your application startup is too slow to begin with. Do you have logging in there which can pinpoint what parts take how much time? Would be interested to learn about that. Cheers, Per On Saturday, June 16, 2012 11:56:33 PM UTC+2, Jeff Schnitzer wrote: > > We're having a big problem with instance startup time. It varies > between 20s and 60+ seconds, and lately it's tending towards the high > end. We're starting to experience downtime because instances get > deadlined before they go active. > > This app is well optimized for GAE. There's no classpath scanning and > it doesn't try to eagerly load data. On a good day it starts in > 20s... so at this point there's not really much I can do. > > I have a cron task that performs a db cleanup once a minute, and since > crons can run over 60s I can eventually get one instance started, > which is enough to serve traffic at the moment. But at this point I > can no longer deploy code over old versions because the appserver > restart will fail. > > Please help. > > Jeff > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/CzSFxHEhj3QJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
